The problem is likely to be the drivers for the new graphic card. Complain to the company, if they get enough complains they will rewrite the drivers. Also check their web site, see if they don't have drivers streamline just for your CPU. It could make a big different. Do the something for the game. I remember when AMD first came out with 3Dnow, Quake 2 ran poorly until AMD got some reworked drivers for the top graphic card which all the gamers were using. Then they were beating Intel computers.